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aurelian-munteanu asked

3 phase AC coupling Fronius 10kw + Victron

Hi, i want to install 10kw PV system AC coupled Fronius Symo 10.3 with Victron inverter/charger.

3 phase system, i will add batteries later.

Its not clear to me which Victron inverter/charger connects best to this Fronius for 10kw 3 phase .

If somebody can help me with the design i would appreciate it .

Thanks!

AC PV Coupling
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basil katakuzinos answered ·

AC-coupled PV with Fronius PV Inverters [Victron Energy]

The above article has a list of compatible Fronius inverters, they will work with All current Multis and Quattro inverters.



AC-coupling and the Factor 1.0 rule [Victron Energy]

Read this article as it contains some important information regarding AC Coupling and inverter sizing.

Remember your victron inverters will be 1 phase therefore for 3 phases off grid you will need 3 victron inverters

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basil katakuzinos avatar image basil katakuzinos commented ·
One more thing, the victrons are purposeless without a battery. Completely missed that you mentioned not having batteries. What is the point of a victron inverter without batteries?
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aurelian-munteanu avatar image aurelian-munteanu commented ·

so 1 Fronius 10kw Symo + 3 Victron inverters/chargers for 3 or 5kw (one for each phase) . Victron connected to the grid and to batteries later. I want it to be ON-grid with possibility to add Tesla 2.8kw batteries later as an upgrade.

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